# name : bsamsize (normal approx) power And Sample Size For Two-Sample Binomial Test
# key : Hmisc.bsamsize.bin.prop.samplesize
# key : bsamsize
# contributor: Shuguang Sun
# --
Hmisc::bsamsize(${1:p1}, ${2:p2}, fraction = ${3:.5}, alpha= ${4:0.05}, power = ${5:0.8})